메타데이터
| 항목 |
값 |
| Designation |
C/2015 W1 (Gibbs) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2016-05-17T04:39:36.486720Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:17Z |
| Obs used |
355 |
| NEO |
- |
| M1 |
12.700 |
| K1 |
9.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2016-01-02.0000000 |
| e |
1.00128700 |
| q (au) |
2.231883 |
| a (au) |
-1734.174037 |
| i (deg) |
87.318151 |
| Ω (om, deg) |
114.314858 |
| ω (w, deg) |
48.113799 |
| M (ma, deg) |
-0.001859 |
밝기
산란 + 전체 선형
$$
M_a = (14.313 + 2.054\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.313 |
| n |
2.054 |
| gf |
0.982 |
| gb |
-0.916 |
| k |
0.999 |
| δ90 |
1.000 |
| 파라미터 |
기호 |
범위 |
설명 |
| 태양·지구거리 1 AU에서의 절대등급 |
H0 |
-5 to 20 |
혜성의 고유 밝기 |
| 광도 기울기 파라미터 |
n |
2 to 6 |
태양거리 변화에 따른 밝기 변화율 |
| 전방 산란 비대칭 계수 |
gf |
0.8 to 1 |
전방 산란의 강도 |
| 후방 산란 비대칭 계수 |
gb |
-1 to -0.5 |
후방 산란의 강도 |
| 분할 계수 |
k |
0.8 to 1 |
전·후방 산란 기여도 비율 |
| 먼지/가스 밝기 비 |
δ90 |
1 to 10 |
코마에서 먼지 산란 대비 가스 방출의 상대 기여 |
참고: EPSC-DPS2025-160
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
20:08:03.08 |
-32:45:18.1 |
HIP 99155 |
6.81 |
| 2026-03-26 12:00 |
20:08:05.62 |
-32:45:32.6 |
HIP 99155 |
6.90 |
| 2026-03-27 00:00 |
20:08:08.11 |
-32:45:47.3 |
HIP 99155 |
7.04 |
| 2026-03-27 12:00 |
20:08:10.56 |
-32:46:02.1 |
HIP 99155 |
7.20 |
| 2026-03-28 00:00 |
20:08:12.97 |
-32:46:17.2 |
HIP 99155 |
7.40 |
| 2026-03-28 12:00 |
20:08:15.34 |
-32:46:32.4 |
HIP 99155 |
7.63 |
| 2026-03-29 00:00 |
20:08:17.65 |
-32:46:47.7 |
HIP 99155 |
7.88 |
| 2026-03-29 12:00 |
20:08:19.93 |
-32:47:03.3 |
HIP 99155 |
8.15 |
| 2026-03-30 00:00 |
20:08:22.16 |
-32:47:19.0 |
HIP 99155 |
8.44 |
| 2026-03-30 12:00 |
20:08:24.35 |
-32:47:34.9 |
HIP 99155 |
8.74 |
| 2026-03-31 00:00 |
20:08:26.49 |
-32:47:51.0 |
HIP 99155 |
9.05 |
| 2026-03-31 12:00 |
20:08:28.58 |
-32:48:07.3 |
HIP 99155 |
9.37 |
| 2026-04-01 00:00 |
20:08:30.64 |
-32:48:23.7 |
HIP 99155 |
9.70 |
| 2026-04-01 12:00 |
20:08:32.64 |
-32:48:40.3 |
HIP 99155 |
10.04 |
| 2026-04-02 00:00 |
20:08:34.60 |
-32:48:57.1 |
HIP 99155 |
10.37 |
| 2026-04-02 12:00 |
20:08:36.52 |
-32:49:14.1 |
HIP 99155 |
10.71 |
| 2026-04-03 00:00 |
20:08:38.39 |
-32:49:31.2 |
HIP 99155 |
11.05 |
| 2026-04-03 12:00 |
20:08:40.21 |
-32:49:48.5 |
HIP 99155 |
11.40 |
| 2026-04-04 00:00 |
20:08:41.99 |
-32:50:06.0 |
HIP 99262 |
11.19 |
| 2026-04-04 12:00 |
20:08:43.72 |
-32:50:23.6 |
HIP 99262 |
10.80 |
| 2026-04-05 00:00 |
20:08:45.41 |
-32:50:41.4 |
HIP 99262 |
10.42 |
| 2026-04-05 12:00 |
20:08:47.05 |
-32:50:59.4 |
HIP 99262 |
10.05 |
| 2026-04-06 00:00 |
20:08:48.64 |
-32:51:17.6 |
HIP 99262 |
9.68 |
| 2026-04-06 12:00 |
20:08:50.19 |
-32:51:35.9 |
HIP 99262 |
9.32 |
| 2026-04-07 00:00 |
20:08:51.69 |
-32:51:54.4 |
HIP 99262 |
8.97 |
| 2026-04-07 12:00 |
20:08:53.14 |
-32:52:13.0 |
HIP 99262 |
8.62 |
| 2026-04-08 00:00 |
20:08:54.55 |
-32:52:31.8 |
HIP 99262 |
8.27 |
| 2026-04-08 12:00 |
20:08:55.91 |
-32:52:50.8 |
HIP 99262 |
7.94 |
| 2026-04-09 00:00 |
20:08:57.22 |
-32:53:10.0 |
HIP 99262 |
7.61 |
| 2026-04-09 12:00 |
20:08:58.48 |
-32:53:29.3 |
HIP 99262 |
7.29 |
| 2026-04-10 00:00 |
20:08:59.70 |
-32:53:48.8 |
HIP 99262 |
6.97 |
| 2026-04-10 12:00 |
20:09:00.87 |
-32:54:08.4 |
HIP 99262 |
6.66 |
| 2026-04-11 00:00 |
20:09:01.99 |
-32:54:28.2 |
HIP 99262 |
6.36 |
| 2026-04-11 12:00 |
20:09:03.06 |
-32:54:48.2 |
HIP 99262 |
6.06 |
| 2026-04-12 00:00 |
20:09:04.09 |
-32:55:08.3 |
HIP 99262 |
5.78 |
| 2026-04-12 12:00 |
20:09:05.07 |
-32:55:28.6 |
HIP 99262 |
5.50 |
| 2026-04-13 00:00 |
20:09:06.00 |
-32:55:49.1 |
HIP 99262 |
5.23 |
| 2026-04-13 12:00 |
20:09:06.88 |
-32:56:09.7 |
HIP 99262 |
4.97 |
| 2026-04-14 00:00 |
20:09:07.71 |
-32:56:30.5 |
HIP 99262 |
4.73 |
| 2026-04-14 12:00 |
20:09:08.49 |
-32:56:51.4 |
HIP 99262 |
4.49 |
| 2026-04-15 00:00 |
20:09:09.23 |
-32:57:12.5 |
HIP 99262 |
4.27 |
| 2026-04-15 12:00 |
20:09:09.91 |
-32:57:33.7 |
HIP 99262 |
4.07 |
| 2026-04-16 00:00 |
20:09:10.55 |
-32:57:55.1 |
HIP 99262 |
3.88 |